User guide

Developers guidelines | AT commands
39 June 2010
<idx> Description
Integer Call identification number as described in 3GPP TS
22.030. This number can be used in AT+CHLD
command operations
<dir>:
<dir> Description
0 Mobile originated (MO) call
1 Mobile terminated (MT) call
<stat>:
<stat> Description
0 Active
1 Held
2 Dialling (MO call)
3 Alerting (MO call)
4 Incoming (MT call)
5 Waiting (MT call)
<mode>:
<mode> Description
0 Voice
1 Data
2 Fax
9 Unknown
<mpty>:
<mpty> Description
0 Call is not one of multiparty (conference) call parties
1 Call is one of multiparty (conference) call parties
<number>:
<number> Description
String type String type phone number in the format specified
by <type>
<type>:
<type> Description
Integer format Type of address octet
(refer to GSM 04.08 section 10.5.4.7)
128 Unknown numbering plan, national/international
number unknown
129 ISDN/telephony numbering plan, national/
international unknown